L17D4K63025 is a flat male dust cover designed for use with female D-subminiature connectors in shell size B (25 contacts). The accessory is manufactured from steel with tin plating over nickel, providing corrosion resistance and durability. It is available in two configurations: with chain for tethered protection or without chain for compact storage. The dust cover features a dimension of 0.41 inches after crimping and complies with RoHS directive EU 2002/95/EC. This accessory is commonly used in industrial and commercial applications to protect connector contacts from dust, moisture, and contamination during storage and transport.